The correct option is B Artificial introduction of sperms of a healthy donor into the vagina.
Artificial
insemination is a technique in which semen is artificially introduced to the
female vagina. In this process, artificial introduction of sperms of a healthy
donor into the vagina takes place. This technique is mainly used in those
females who husband is either unable to inseminate or has very low sperm counts
in the ejaculation. So, in these cases, semen is collected from the donor male
and then artificially introduced into the vagina of the female. This technique
is also used in animals such as cows and buffaloes to produce offsprings who
are better than their parents and give high yield nutrient-rich milk.